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Always place schema markup directly in the position on the page where you want the content to appear if it's content specific - wrapping it around that content. So if your business name and address are in the main content area, that's where you place the schema code. It's literally a wrapper just like a CSS div would be, or an old-school HTML table, but not for display purposes on-site.

EDITED 11/14/2013 based on a question from Oliver (below) regarding situations where markup is located in the "head" area of the page:

Exceptions to "in-body" markup:

As is the case with any structured markup solution, there will, from time to time, be cases where certain, specific elements go in the "head" section of the code. Anything that applies to an individual page in its entirety, and does not limit itself to an element of content within the page does, in fact, belong in the "head" area of the page code.

Thank you for pointing out this "exception" to the Schema placement rule. As is the case with any structured markup solution, there will, from time to time, be cases where certain, specific elements go in the "head" section of the code. Anything that applies to an individual page in its entirety, and does not limit itself to an element of content within the page does, in fact, belong in the "head" area of the page code.

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